WE BUILD AI

Trainee – Junior AI Engineer

WE BUILD AI

full-time

Posted on:

Location Type: Hybrid

Location: Köln • 🇩🇪 Germany

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Job Level

Entry Level

Tech Stack

AWSAzureCloudGoogle Cloud PlatformPython

About the role

  • You will assist in designing and implementing AI-driven software solutions that automate processes and improve efficiency
  • You will be involved in deploying existing machine learning models, adapting them with the team to specific use cases, and supporting their production rollout
  • You will develop backend services and APIs in Python, e.g. using FastAPI
  • You will learn to work with cloud-based AI services and contribute to implementing robust, scalable solutions for real customer requirements
  • You will work with structured and unstructured data and prepare it for AI applications
  • You will help ensure the quality and reliability of AI components, e.g. through testing, validation and proper error handling
  • You will work closely with our AI experts, internal teams and customers and learn to translate business requirements into technical solutions

Requirements

  • Degree in Computer Science, Mathematics, Data Science or a related field
  • Some practical experience developing with Python
  • Basic familiarity with machine learning models and large language models (LLMs)
  • Initial exposure to cloud computing is a plus (e.g. Azure, AWS or GCP)
  • Good written and spoken German and English
  • Enthusiasm for new technologies and the practical application of AI
  • Analytical thinking and a structured working approach
Benefits
  • Modern 4:1 work model — four days focused on core tasks and one day per week for personal development
  • Flexible working hours tailored to your schedule
  • Option to work remotely — whenever and wherever
  • Flat hierarchies and an open, collegial working environment
  • Agile working with short decision-making paths
  • Regular feedback rounds during the year, a mentoring programme and opportunities for personal development
  • Fair compensation structures — aligned with market developments and team structure
  • Regular team events, shared workations and office dogs

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
PythonFastAPImachine learninglarge language modelscloud computingdata preparationAPI developmenttestingvalidationerror handling
Soft skills
analytical thinkingstructured working approachcommunicationcollaborationenthusiasm for new technologies
Certifications
Degree in Computer ScienceDegree in MathematicsDegree in Data Science